Install
Demotte, IN 46310 Weather
Current conditions
Observed at Valparaiso Porter County Municipal Airport · 19 min ago
Forecast
10-day-
Today
Sunny. High near 70, with temperatures falling to around 67 in the afternoon. East wind 0 to 5 mph.
-
Tonight
Mostly clear, with a low around 41. East wind 0 to 5 mph.
-
Wednesday
Sunny. High near 72, with temperatures falling to around 68 in the afternoon. East northeast wind around 0 mph.
National Weather Service forecast updated 2 hrs ago.
Hourly
Hourly forecast- Now59°
- 12 PM64°
- 1 PM67°
- 2 PM69°
- 3 PM69°
- 4 PM70°
- 5 PM67°
- 6 PM62°
- 7 PM58°
- 8 PM54°
- 9 PM52°
- 10 PM50°
- 11 PM48°
- Wed12 AM46°
- 1 AM46°
- 2 AM45°
- 3 AM44°
- 4 AM43°
- 5 AM42°
- 6 AM42°
- 7 AM41°
- 8 AM44°
- 9 AM50°
- 10 AM55°
10-day forecast
Details- TodayOct 20Sunny41°70°
- WedOct 21Sunny44°72°
- ThuOct 22Sunny46°72°
- FriOct 23Sunny45°69°
- SatOct 24Mostly Sunny46°70°
- SunOct 25Partly Sunny50°73°
- MonOct 26Partly Sunny12%47°68°
- TueOct 27Cloudy42°55°
- WedOct 28Light rain0.06 in41°48°
- ThuOct 29Sunny41°58°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news in Indiana
More weather news-
Farmer’s Almanac Drops Thanksgiving Forecast and If It’s Correct, Folks in Indiana & Kentucky Should Get Their Snow Shovels ReadyIn the past several years, Thanksgiving weather has been pretty warm. I don't recall the last time I saw snow on Thanksgiving in the Tri-State. We even spent Thanksgiving outside like a picnic a few years ago because it…
-
Frost in Indiana could impact corn yields in isolated areasPurdue Extension’s corn specialist says the state’s first frost of the season could have an impact on corn yields. Dan Quinn tells Brownfield, “If the crop hasn’t reached maturity yet, then we have impacts from both…
-
Warming Trend Arrives Across Central Indiana This WeekA warming trend is taking hold today, with temperatures rising steadily over the coming days. The 13Weather Blog breaks down how the change will shape conditions across the Indianapolis area. Expect milder afternoons…
-
Overnight Frost Advisory for parts of Illinois, NW IndianaCBS News Colorado 10pm Saturday CBS News Detroit Weekend 11pm CBS News Los Angeles Weekend 9pm CBS News Philadelphia Weekend 11pm KDKA News Weekend 11pm CBS News Texas Weekend 10pm
-
Dangerous Freeze Warnings for 38 Counties in Indiana as Temperatures PlummetFreeze Warnings are in effect for 38 counties in Indiana from early Sunday morning, with lows as cold as 30 degrees expected. The warnings cover central, northern, east central and southeast Indiana. Three National…
-
Frost Advisory Saturday night for Kentucky, southern IndianaWHAS11 Frost Advisory Saturday night for Kentucky, southern Indiana Cover any sensitive vegetation in a cloth and bring in potted plants. The last time Louisville has a freeze was March 18, 2026. The normal first frost…
-
Freeze watch in place for parts of central Indiana on Sunday morning | Oct. 16, 2026INDIANAPOLIS — A freeze watch has been issued for the eastern half of central Indiana. TONIGHT: Spotty showers are possible early on. Clouds decrease as the night goes on. Low temperatures in the upper 30s. Winds could…
-
Dangerous Freeze Watch for Parts of Indiana and Michigan as Temperatures DropA Freeze Watch is in effect for northern, east central and southeast Indiana from late Saturday night through Sunday morning, with lows as cold as 31 degrees possible. A Frost Advisory comes first, for parts of northern…
-
NOAA’s Winter Outlook Has Good and Bad News for Kentucky and IndianaThe National Oceanic and Atmospheric Administration (NOAA) has released its U.S. winter outlook for 2026-2027, and it looks like El Niño will be a star player, for better or worse. And by that I mean there will be doses…
-
Harvest Weather Forecast: Indiana’s Dry, Sunny Stretch Sets the Stage for a Harvest PushFull sunshine through the end of the weekend and throughout the coming week will send temperatures soaring to well above normal levels. Rapid drying is expected, with excellent evaporation rates and no rain threats…
Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- TueModerate
- WedModerate
Hammond-Gary, IN reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyRensselaer Wwtp, records since 1900. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Hammond 50 km
- Gary 48 km
- Calumet City 55 km
- Portage 45 km
- Merrillville 35 km
- Valparaiso 37 km
- Chicago Heights 49 km
- Crown Point 29 km
- Schererville 38 km
- East Chicago 55 km
- Hobart 40 km
- Lansing 50 km
Forecasters' discussion
From the National Weather Service office in LOT, issued 5 hrs ago
Key Messages
- Some ground fog may develop within 10-15 miles of Lake Michigan during early morning hours the next few days. Any fog would then quickly dissipate after sunrise.
- An extended period of dry and above to much above average temperatures is expected through the upcoming weekend.
Discussion
Issued at 154 AM CDT Tue Oct 20 2026
No significant weather is expected through the upcoming weekend with above to much above average temperatures each day. Generally light winds should allow weak lake breezes to form each of the next several afternoons, but only result in slightly cooler conditions right near the lake. A modest increase in moisture in the wake of the afternoon lake breezes could allow for some ground fog to form during the early morning hours the next few days. Otherwise, look for mostly sunny conditions for the remainder of the work week.
- Borchardt/Izzi
Aviation
Issued at 620 AM CDT Tue Oct 20 2026
Key Aviation Messages for the current TAF period:
- Patchy fog, locally dense, expected through sunrise today for Chicago terminals north of a KARR to KMDW line
- Another chance for fog tomorrow morning for terminals closer to the lake
A locally dense fog bank is slowly moving west-southwest through northeastern Illinois this morning. The densest portion of this fog dropped visibilities at KORD down to 1/8SM. This fog is expected to impact terminals north of a KARR to KMDW line. Some MVFR vis may develop south of this border, but there is lower confidence in dense fog currently. Once the sun rises, visibilities are expected to improve back to VFR conditions.
Winds are expected to be light and mostly out of the east- southeast today. Clear skies are expected tonight with light, if not calm, winds across the area leading to another chance for fog developing closer to the lake, similar to what is happening this morning. A TEMPO was added for tomorrow morning introducing reduced vis which can be adjusted in later TAF packages with updated confidence in fog development.
Lot Watches
IL...Dense Fog Advisory until 9 AM CDT this morning for ILZ005- ILZ006-ILZ013-ILZ103-ILZ104.
IN...None. LM...None.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.